呋喃

• 产品号: A13102
• CAS号: 110-00-9
• 分子式: C4H4O
• 分子量: 68.07396
• 纯 度: 99%, stab. with ca 250ppm BHT

产品别名

• 标题: Furan
• IUPAC标准名: furan
• IUPAC传统名: furan

产品登记号

• CAS号: 110-00-9
• MDL号: MFCD00003222
• Beilstein号: 103221
• EC号: 203-727-3
• 默克索引号: 144296

产品性质

• 纯度: 99%, stab. with ca 250ppm BHT
• 沸点: 32-33°C
• 密度: 0.936
• 闪点: -35°C(-31°F)
• 熔点: -86°C
• 折射率: 1.4220
• GHS危险声明: H224-H350-H341-H373-H302-H332-H315-H412
• 欧盟危险性物质标志: 有毒(Toxic) (T)
• 欧盟危险性物质标志: 高度易燃性(Highly flammable) (F+)
• GHS警示性声明: P210-P241-P260-P303+P361+P353-P405-P501A
• 危险公开号: 45-12-19-20/22-38-48/22-68-52/53
• RTECS编号: LT8524000
• 安全公开号: 53-45-61
• 保存注意事项: Air & Light Sensitive
• TSCA收录: 是
• 联合国危险货物等级: 3
• 联合国危险货物编号: UN2389
• 联合国危险货物包装类别(PG): I

参考文献

• Diels-Alder cycloadditions of furans with reactive dienophiles, followed by dehydration of the resulting 7-oxabicyclo[2.2.1]heptenes generate benzenes, often with unusual substitution patterns; review: Heterocycles, 22, 875 (1984). Adducts of furans with alkynes can be deoxygenated to give aromatics, by reduction with a low-valent Ti reagent: Synthesis, 787 (1984).
• Lithiation occurs at the 2-position. For the formation of furfuryl propargyl ethers and their subsequent base catalyzed intramolecular Diels-Alder cyclization to isobenzofuran derivatives, see: J. Org. Chem., 60,6168 (1995). 2,5-Dilithiation can be effected with n-BuLi - TMEDA: J. Chem. Soc., Perkin 1, 887 (1977), or n-BuLi - KO-t-Bu: Synthesis, 316 (1988). A Barbier-type reaction has been reported in which furan is reacted with a lithium carboxylate in the presence of Li metal and t-butyl chloride with sonication: J. Org. Chem., 60, 8 (1995), providing an easy access to 2-furyl ketones.